干旱区生态环境知识资源中心(Arid): Distinct Microbial Communities in Adjacent Rock and Soil Substrates on a High Arctic Polar Desert

Arid

DOI	10.3389/fmicb.2020.607396
	Distinct Microbial Communities in Adjacent Rock and Soil Substrates on a High Arctic Polar Desert
	Choe, Yong-Hoe; Kim, Mincheol; Lee, Yoo Kyung
通讯作者	Lee, YK (corresponding author), Korea Polar Res Inst, Incheon, South Korea.
来源期刊	FRONTIERS IN MICROBIOLOGY
ISSN	1664-302X
出版年	2021
卷号	11
英文摘要	Understanding microbial niche variability in polar regions can provide insights into the adaptive diversification of microbial lineages in extreme environments. Compositions of microbial communities in Arctic soils are well documented but a comprehensive multidomain diversity assessment of rocks remains insufficiently studied. In this study, we obtained two types of rocks (sandstone and limestone) and soils around the rocks in a high Arctic polar desert (Svalbard), and examined the compositions of archaeal, bacterial, fungal, and protistan communities in the rocks and soils. The microbial community structure differed significantly between rocks and soils across all microbial groups at higher taxonomic levels, indicating that Acidobacteria, Gemmatimonadetes, Latescibacteria, Rokubacteria, Leotiomycetes, Pezizomycetes, Mortierellomycetes, Sarcomonadea, and Spirotrichea were more abundant in soils, whereas Cyanobacteria, Deinococcus-Thermus, FBP, Lecanoromycetes, Eurotiomycetes, Trebouxiophyceae, and Ulvophyceae were more abundant in rocks. Interestingly, fungal communities differed markedly between two different rock types, which is likely to be ascribed to the predominance of distinct lichen-forming fungal taxa (Verrucariales in limestone, and Lecanorales in sandstone). This suggests that the physical or chemical properties of rocks could be a major determinant in the successful establishment of lichens in lithic environments. Furthermore, the biotic interactions among microorganisms based on co-occurrence network analysis revealed that Polyblastia and Verrucaria in limestone, and Atla, Porpidia, and Candelariella in sandstone play an important role as keystone taxa in the lithic communities. Our study shows that even in niches with the same climate regime and proximity to each other, heterogeneity of edaphic and lithic niches can affect microbial community assembly, which could be helpful in comprehensively understanding the effects of niche on microbial assembly in Arctic terrestrial ecosystems.
英文关键词	polar desert lithic niche edaphic niche rock microbes Arctic
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000609416200001
WOS关键词	MCMURDO DRY VALLEYS ; BACTERIAL COMMUNITIES ; FUNCTIONAL REDUNDANCY ; GLOBAL BIOGEOGRAPHY ; ENDOLITHIC LICHENS ; DIVERSITY ; COLONIZATION ; SURFACES ; FUNGI ; MICROORGANISMS
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347911
作者单位	[Choe, Yong-Hoe; Kim, Mincheol; Lee, Yoo Kyung] Korea Polar Res Inst, Incheon, South Korea
推荐引用方式 GB/T 7714	Choe, Yong-Hoe,Kim, Mincheol,Lee, Yoo Kyung. Distinct Microbial Communities in Adjacent Rock and Soil Substrates on a High Arctic Polar Desert[J],2021,11.
APA	Choe, Yong-Hoe,Kim, Mincheol,&Lee, Yoo Kyung.(2021).Distinct Microbial Communities in Adjacent Rock and Soil Substrates on a High Arctic Polar Desert.FRONTIERS IN MICROBIOLOGY,11.
MLA	Choe, Yong-Hoe,et al."Distinct Microbial Communities in Adjacent Rock and Soil Substrates on a High Arctic Polar Desert".FRONTIERS IN MICROBIOLOGY 11(2021).